Loaded rubber heel



May 26, 1931. b I 1,806,641

LOADED RUBBER HEEL Original Filed Dec; 31, 1924 by reason of the taching surface of the heel.

will bounce from the heel.

-Patented May 26, 1-931 7 UNITED STATES PATENT OFFICE GAYNOR weoumam'or BOSTON, MASSACHUSETTS, ASSIGNOR T0 UNITED SHOE MA CHINERY CORPORATION, OF P ATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY LOADED RUBBER imEL Original-application filed December 31, 1924, Serial No. 759,093. Divided and this application filed January 10, 1927.

This invention relates to heels of resilient material, commonly spoken of as rubber heels, and is illustrated herein as embodied in a rubber heel loaded with attaching nails 5 having their points securely embedded in a nail-anchoring element with which the attaching surface of the heel is provided.

To attach rubber heels to shoes by hand has heretofore been a troublesome operation fact that, as rubber heels are ordinarily made, it is necessary to drive each attaching nail through a layer of tough rubber approximately half the thickness of the heel, extending from the washers to the at- The nature of this rubber is such as to tend to make the hammer rebound when the first blow is struck, and if the blow of the hammer is not sufficiently sharp, the nail also occasionally The nails used for attaching rubber heels are so short that when one of these nails is held between the thumb and forefinger, with its point pro-V jecting through the usual hole in the tread surface of the heel into the washer while the first blow'is struck with the hammer, there is imminent danger of the workman striking his thumb or' finger, or both, with the ham; mer. This, of course, is nota satisfactory condition.

Moreover, in attaching rubber heels it is desirable that the nails be inclined or toedin so that .each nail will strike the convex clenching surface upon which the shoe is supported at right angles thereto.

which strikes the clenching surface at a-substantial inclination thereto is likely to run rather than to clench properly and then has inferior holding power. hen attaching rubber heels manually. it has, on account of the conditions described above, heretofore been difficult to control with a satisfactory degree of certainty the directions inwhich the various nails were driven.

A nail" Serial No. 160,206.

nails having their points driven into and securely held by this wooden element and being preferably toed-in so that each nail will start in a direction that will insure a good clench. Heels may be loaded in this manner by machinery and sold. already loaded to shoe-repairmen. This eliminates the necessity of the workman holding each nail manually while he starts it with his hammer, thus preventing many a bruised thumb or finger and insuring that every nail is started in the right direction. Heels intended for the repair trade can advantageously be loaded with the nails in difierent positions from those ordinarily used in attaching rubber heels by machinery in the portion of the sole of the shoe and eliminates the necessity of plugging nail holes in the sole before attaching the new heel.

This application is a division of my copending application Serial No. 7 59,093, filed December 31, 1924 which has matured into Patent No. 1,729,797, granted October 1, 1929 With the above and other objects and features in view, the invention will now be described in connection with the accompanying drawing and will be pointed out in the appended claims.

The accompanying drawing is a perspective view, partly in section, of a loaded rubber heelembodying the present invention.

The drawing illustrates a so-called half heel composed of a body of suitable rubber compound 10, with a nail-anchoring, reinforcing element or core 12 made up of a plurality of layers of plywood vulcanized therein and exposed at the attaching surface of the heel. As illustrated the heel is loaded with a plurality of headless nails 14 driven into and having their points 16 securely em- It is an object of this invention to facilitate the manual attachmentof rubber heelsto shoes. This is accomplished by loading the heels, before theyare supplied to the workmenwho are to attach them, with attaching nails penetrating a nail-anchoring bedded in the nail-anchorin element 12. It is not essential however, t at the points of the nails be embedded in" the nail-anchor ing element, since their'points' may project more or less beyond that element. The nails are teed-in; that is, their points are inclined away from the margin of the heel so that, after penetrating the sole of the shoe durin the attachmeht of a heel, they will 19 meet t e convex clenching surface upon which the heel-seat of the shoe is supported substantially at right angles thereto and will clench properly. With the nails toed-in and converging in this fashion, their holding power is increased and less metal is required for a satisfactory clench than would .be necessary if the nails were parallel to each other. This lessens the amount of metal in the heelseat of theshoe and thus eliminates bumps 20 and irregularities.

- In this specification and claims it is to be understood that the words rubber heels are used to denote heel members Whether whole heels, half heels, or otherwise, of any suitable resilient compound such as are commonly spoken of as rubber heels.

\ Having described the'invention, what I claim as new and desire to secure by Letters Patent of the United States is J 1, Aloaded rubber heel having a penetrable nail-anchoring element, the nails with which the heel is loaded penetratin said element and being held thereby rigi y in pre-' determined relation to each other.

'35 '2. A loaded rubber heel having an imperforate nail-anchorin element of penetra-- ble material at its attac ing surface with the points of the nails with which the heel is loaded embedded in and securely held by said 40 element. 7 i

3. A loaded rubber heel having 'a penetrablenail-anchoring element at its attaching surface, said heel being loaded with nails havin their oints toed-in-and embedded in an secure y held by said nail-anchoring element.

4. A rubber heel having a wooden nailanchorini element at its attaching surface, said heel ein loaded with nails having their points embed ed in and securely 'held by said wooden element.

In-testimony whereof I have' signed my name to this specification.

GAYNOR, OGORMAN. I I 

